Based on this product's specifications, here are some alternatives and similar models
B&W Gradual Filter Master Line 711 GND 0.3 ND 62mm — graduated neutral density, 62 mm
Summary description:
B&W Master Line 711 GND 0.3 ND is a 62 mm graduated neutral density filter designed to reduce exposure in part of the frame by 1 stop (0.3 ND). It creates balanced exposures in scenes with bright skies or uneven lighting. Suited for landscape and outdoor photography, it mounts on lenses with a 62 mm thread to control highlights and improve dynamic range.